Safety Data Sheets: Navigating the 16 Sections

Hazard Communication

The Problem

For decades, Material Safety Data Sheets (MSDS) provided chemical safety information, but their inconsistent formats often made it difficult to locate critical safety details during emergencies. Imagine managing a chemical spill without a clear structure for safety data—this confusion posed serious risks. The transition to the Globally Harmonized System (GHS) and the standardized 16-section Safety Data Sheet (SDS) format addresses this issue by organising all chemical safety information in a clear, consistent format, ensuring quick reference and effective emergency response.

Identify the Hazards

  • Inconsistent Formats: Previous MSDS formats varied widely, making it difficult to quickly locate first aid or emergency response information.
  • Delayed Emergency Responses: Unclear or scattered data could slow down first aid, spill containment, or firefighting actions.
  • Incomplete Hazard Understanding: Workers might miss vital information about PPE, handling, or storage due to disorganized documents.

Safety Practices and Preventative Measures

Immediate Response Information (Sections 1–8):

  • 1. Identification: Chemical name, supplier details, and emergency contact.
  • 2. Hazard Identification: Signal words (e.g., “Danger”), classification, and pictograms.
  • 3. Composition: Hazardous ingredients and concentrations.
  • 4. First Aid Measures: Procedures for inhalation, skin or eye contact, and ingestion.
  • 5. Fire-Fighting Measures: Suitable extinguishing methods, specific hazards, and PPE.
  • 6. Accidental Release Measures: Spill cleanup procedures and containment methods.
  • 7. Handling and Storage: Guidelines for safe handling and storage conditions.
  • 8. Exposure Controls / Personal Protection: Engineering controls and required PPE.

Technical Information (Sections 9–11):

  • 9. Physical and Chemical Properties: Boiling point, flash point, etc.
  • 10. Stability and Reactivity: Conditions to avoid, incompatible materials.
  • 11. Toxicological Information: Health effects and symptoms of exposure.

Additional Information (Sections 12–15 – not mandatory under GHS but often included):

  • 12. Ecological Information: Environmental impact.
  • 13. Disposal Considerations: Disposal methods and regulations.
  • 14. Transport Information: Transport classification and handling requirements.
  • 15. Regulatory Information: Safety, health, and environmental regulations.

Other Information (Section 16):

  • 16. Date of preparation or last revision and additional reference details.

Real-Life Case or Scenario

Where possible, use an actual incident that you have experienced or been involved in.

During a chemical spill, a worker was exposed to a hazardous substance. The team wasted time searching an outdated MSDS to find the correct response measures. With a standardized SDS, they could have gone directly to Section 4 (First Aid Measures) and Section 6 (Accidental Release Measures), minimizing harm and improving response time.

Employee Responsibilities

  • Familiarize yourself with the 16-section SDS format.
  • Use the SDS to guide safe chemical handling, PPE requirements, and emergency actions.
  • Report missing or outdated SDSs immediately.
  • In the event of an incident, locate and follow SDS response instructions.

Employer Responsibilities

  • Make SDSs easily accessible in physical or electronic formats for all hazardous substances.
  • Ensure all workers are trained in how to read and use SDSs and the GHS labelling system.
  • Keep SDSs current and available for review during any shift.
  • Ensure all hazardous substances are correctly labelled and documented.

Discussion & Questions

  • Which SDS sections would you check first during a chemical exposure?
  • Have you seen the new SDS format in our workplace?
  • Do you know where our SDSs are kept and how to access them?

Encourage team members to share examples of using SDSs or suggest improvements.

Commitment/Action Plan

Let’s commit to reviewing one SDS this week and familiarizing ourselves with the 16 sections. Ensure you know where the SDSs are stored and how to use them in an emergency.

Wrap-Up

The GHS-based SDS format improves workplace safety by ensuring consistent and accessible chemical safety information. Understanding the layout and content can save time, prevent injury, and support compliance with Canadian workplace health and safety regulations overseen by the Canadian Centre for Occupational Health and Safety (CCOHS).

Standards Overview

The Canadian Workplace Hazardous Materials Information System (WHMIS 2015) aligns with the Globally Harmonized System (GHS) for classification and labelling of hazardous products.

  • Safety Data Sheets (SDS) must be accessible to workers and comply with GHS standards.
  • Employers are responsible for ensuring hazardous products are properly labelled and documented.
  • SDSs must be reviewed and updated every three years or sooner if new information becomes available.

Disclaimer

“The information provided in this toolbox talk is intended for informational and educational purposes only. It is not a substitute for professional legal, safety, or regulatory advice. The content reflects general best practices and industry standards but may not be applicable to all workplace environments or jurisdictions.

It is the responsibility of employers, supervisors, and workers to ensure compliance with applicable federal, provincial, and territorial laws, regulations, and standards, including but not limited to those set by the Canadian Centre for Occupational Health and Safety (CCOHS) and relevant provincial occupational health and safety authorities. Site App Pro, its affiliates, agents, or representatives—as well as the authors, presenters, and distributors of this toolbox talk—assume no liability for the use or application of the information provided.

Participants are strongly encouraged to consult appropriate legal, safety, or regulatory professionals regarding specific workplace concerns or questions. Always adhere to your organisation’s policies and procedures for health and safety and hazard management.

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Last Updated:
July 25, 2025